I wouldn't worry about the plates just use the ones you have.
Even with today's inflation $70 is a lot of money to spend on something you hardly ever use.
I had to sit down and justify the tons of money I have spent on my stuff.
But I use mine year round not just deer season.
As you may have read before my reasons were sanitation quality and economy.
This means I have to keep track of how much of what I have and make more when I run out.
It also means I had to train myself to not buy the stuff and utilize the contraptions and them not just sit on a shelf.
There are probably thousands and thousands of kitchenAid mixers meat grinders stuffers food processors water bath canners pressure cookers and pasta rollers just sitting and collecting dust.
Worth